JP2693541B2 - Cassette loading device - Google Patents
Cassette loading deviceInfo
- Publication number
- JP2693541B2 JP2693541B2 JP63333590A JP33359088A JP2693541B2 JP 2693541 B2 JP2693541 B2 JP 2693541B2 JP 63333590 A JP63333590 A JP 63333590A JP 33359088 A JP33359088 A JP 33359088A JP 2693541 B2 JP2693541 B2 JP 2693541B2
- Authority
- JP
- Japan
- Prior art keywords
- worm
- cassette
- loading
- unit
- tape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/675—Guiding containers, e.g. loading, ejecting cassettes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/60—Guiding record carrier
- G11B15/66—Threading; Loading; Automatic self-loading
- G11B15/665—Threading; Loading; Automatic self-loading by extracting loop of record carrier from container
- G11B15/6653—Threading; Loading; Automatic self-loading by extracting loop of record carrier from container to pull the record carrier against drum
- G11B15/6656—Threading; Loading; Automatic self-loading by extracting loop of record carrier from container to pull the record carrier against drum using two-sided extraction, i.e. "M-type"
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/26—Driving record carriers by members acting directly or indirectly thereon
- G11B15/28—Driving record carriers by members acting directly or indirectly thereon through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means for controlling the speed of the drive; Multiple capstan systems alternately engageable with record carrier to provide reversal
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/675—Guiding containers, e.g. loading, ejecting cassettes
- G11B15/67544—Guiding containers, e.g. loading, ejecting cassettes with movement of the cassette parallel to its main side and subsequent movement perpendicular thereto, i.e. front loading
- G11B15/67547—Guiding containers, e.g. loading, ejecting cassettes with movement of the cassette parallel to its main side and subsequent movement perpendicular thereto, i.e. front loading the two movements being made by the cassette holder
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） この発明は、例えばビデオテープレコーダ等の磁気記
録再生装置に係り、特に、そのテープカセットを略水平
状に搬送してテープ駆動部に装填するカセット装填装置
に関する。The present invention relates to a magnetic recording / reproducing apparatus such as a video tape recorder, and more particularly, to a tape by transporting its tape cassette in a substantially horizontal shape. The present invention relates to a cassette loading device that loads a drive unit.
（従来の技術） 一般に、この種のカセット装填装置はテープカセット
が、そのカセットホルダに略水平状に挿着されると、フ
ロントローディング機構が作動してカセットホルダを搬
送してテープ駆動部上に到達すると、下降されて保持し
たテープカセットをテープ駆動部に装填する。この際、
テープカセットは、そのカセット蓋が開かれ、そのテー
プの内側にテープローディング機構のテープ引出し部材
が進入され、ここに、テープローディング機構が駆動さ
れてテープローディングが行われる。(Prior Art) Generally, in this type of cassette loading device, when a tape cassette is inserted into the cassette holder in a substantially horizontal state, the front loading mechanism operates to convey the cassette holder and place it on the tape drive unit. When it reaches, the tape cassette that has been lowered and held is loaded into the tape drive unit. On this occasion,
In the tape cassette, the cassette lid is opened, the tape pull-out member of the tape loading mechanism is inserted into the inside of the tape, and the tape loading mechanism is driven to perform the tape loading.
そして、このようなカセット装填装置において、次に
要請されることは、簡易な構成で、高精度な動作制御を
確保すると共に、その製作組立て作業の簡略化を図るこ
とである。Then, in such a cassette loading device, what is next required is to ensure highly accurate operation control with a simple structure and to simplify the manufacturing and assembling work.
このような対象として、駆動モータの駆動力がベルト
伝達機構を介して伝達されるウォーム及びウォームホイ
ールを介してカセットホルダを搬送する駆動機構があ
る。即ち、このウォーム及びウォームホイールはフロン
トローディング機構が作動されてテープカセットを保持
したカセットホルダがローディング途中で、使用者によ
り誤って強制的に停止された場合、そのウォームに非常
に大きなトルクが付与されることとなり、該ウォームと
ウォームホイールあるいは、ウォーム支持部間にかじり
を起すことがある。この場合、ウォームのかじりを解除
する手段としては、駆動モータを反転駆動して、ウォー
ムを反転させることにより、解除される。As such an object, there is a drive mechanism that conveys the cassette holder via a worm and a worm wheel to which the drive force of the drive motor is transmitted via the belt transmission mechanism. In other words, when the cassette holder holding the tape cassette is mistakenly forcibly stopped by the user while the front loading mechanism is operated and the tape cassette is being loaded, a very large torque is applied to the worm and the worm wheel. As a result, galling may occur between the worm and the worm wheel or the worm support. In this case, as a means for canceling the galling of the worm, the driving motor is reversely driven to reverse the worm, thereby canceling.
しかしながら、上記カセット装填装置では、ウォーム
のかじりを解除するのに、駆動時と異なり、非常に大き
なトルクが必要となるために、予めカセットローディン
グ用の駆動モータを起動トルクを越える大きなトルクを
有した大形のものを用いなければ、確実な動作を確保す
ることが困難なために、その電力消費が嵩むという問題
を有していた。また、ウォームはウォームホイールと組
合わせ配置するのに、軸受を介して、そのスラスト方向
及びラジアル方向を軸支した状態で配設しなければなら
ないために、その組立て取付け作業が煩雑であるという
問題を有していた。However, in the above cassette loading device, in order to release the worm's galling, a very large torque is required, unlike during driving, so that the driving motor for loading the cassette has a large torque that exceeds the starting torque in advance. If a large-sized one is not used, it is difficult to secure a reliable operation, which causes a problem that the power consumption increases. In addition, since the worm must be installed in combination with the worm wheel, it must be installed in a state in which the thrust direction and the radial direction are axially supported through the bearing, so that the assembly work is complicated. Had.
（発明が解決しようとする課題） 以上述べたように、従来のカセット装填装置では、駆
動力の大きな駆動モータを使用しないと、動作の確実化
を確保することが困難であると共に、その組立て取付け
作業が煩雑であるという問題を有していた。(Problems to be Solved by the Invention) As described above, in the conventional cassette loading device, it is difficult to ensure reliable operation unless a drive motor having a large driving force is used, and at the same time, it is assembled and mounted. There was a problem that the work was complicated.
この発明は上記の事情に鑑みてなされたもので、小さ
な駆動力で、確実な動作制御を実現し得、かつ、組立て
取付け作業の簡略化を図り得るようにしたカセット装填
装置を提供することを目的とする。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cassette loading device that can realize reliable operation control with a small driving force and can simplify the assembly and mounting work. To aim.
［発明の構成］ （課題を解決するための手段） この発明のカセット装填装置は、駆動源の駆動力が伝
達されるベルト伝達機構のプーリにウォームの一端部が
同軸的に嵌着され、その中間部がスラスト軸受け及びラ
ジアル軸受で軸支されたウォームユニットと、このウォ
ームユニットが配設される取付け体に設けられるもの
で、前記ウォームユニットの他端部及びラジアル軸受が
着脱自在に保持される第１及び第２の弾性支持部と、前
記ウォームユニットのウォームに歯合され、テープカセ
ットが略水平状に収容されたカセットホルダを案内して
前記テープカセットをテープ駆動部に装填するウォーム
ホイールとを備え、前記スラスト軸受けの摩擦係数を前
記ウォームユニットを保持する第１及び第２の弾性支持
部の摩擦係数より小さく設定したものである。[Structure of the Invention] (Means for Solving the Problems) In the cassette loading device of the present invention, one end of the worm is coaxially fitted to the pulley of the belt transmission mechanism to which the driving force of the driving source is transmitted. A worm unit having an intermediate portion rotatably supported by a thrust bearing and a radial bearing and a mounting body on which the worm unit is disposed are provided, and the other end of the worm unit and the radial bearing are detachably held. A first and a second elastic support portion, and a worm wheel that meshes with the worm of the worm unit and guides a cassette holder in which the tape cassette is accommodated in a substantially horizontal state to load the tape cassette into the tape drive portion. And the friction coefficient of the thrust bearing is set to be smaller than the friction coefficients of the first and second elastic support portions holding the worm unit. Those were.
（作用） 上記構成によれば、ウォームユニットは取付け体に設
けられた第１及び第２の弾性支持部に各弾性力に抗して
挿着された後、ウォームホイールに歯合されて組立てら
れ、大きなトルクが付与された場合においては、そのス
ラスト軸受により、ウォームホイールや、第１及び第２
の弾性部材とのかじりの発生が確実に防止される。従っ
て、駆動源の駆動力を起動トルクに対応したもので、確
実な動作制御が実現できる。(Operation) According to the above configuration, the worm unit is assembled by being fitted to the first and second elastic support portions provided on the mounting body against each elastic force and then meshed with the worm wheel. , When a large torque is applied, the thrust bearing allows the worm wheel and the first and second
The occurrence of galling with the elastic member is reliably prevented. Therefore, the driving force of the driving source corresponds to the starting torque, and reliable operation control can be realized.
（実施例） 以下、この発明の実施例について、図面を参照して詳
細に説明する。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図はこの発明の一実施例に係るカセット装填装置
を示すもので、図中10,11は支持体を形成する第１及び
第２の支持板である。この第１及び第２の支持板10,11
は、上連結板12a,12b及びカセットガイドを兼ねる下連
結板13とを介して箱状に組立てられ、そのカセット着脱
側に、例えば図示しない出入蓋が回動式に開閉自在に配
設される。そして、これら第１及び第２の支持板10,11
間にはカセットホルダ14が矢印Ａ及びＢ方向に略水平状
に移動自在に配設される。FIG. 1 shows a cassette loading device according to an embodiment of the present invention. In the drawing, 10 and 11 are first and second support plates forming a support. The first and second support plates 10 and 11
Is assembled in a box shape via the upper connecting plates 12a and 12b and the lower connecting plate 13 also serving as a cassette guide, and a cassette lid (not shown) is rotatably and openably provided on the cassette attachment / detachment side. . Then, these first and second support plates 10 and 11
A cassette holder 14 is disposed between them so as to be movable in a substantially horizontal direction in the directions of arrows A and B.
カセットホルダ14は第１及び第２の側板15,16が上及
び下板17,18を介して略矩形状に組立てられてカセット
収容部が形成されており、その下板には図示しないテー
プ駆動部に対応して切り欠き部18a,18aが形成される。The cassette holder 14 has a first and second side plates 15 and 16 assembled into a substantially rectangular shape via upper and lower plates 17 and 18 to form a cassette housing portion. Notch portions 18a, 18a are formed corresponding to the portions.
また、カセットホルダ14の第１及び第２の側板15,16
の外側にはそれぞれ案内ピン19a,19bが略同軸的に設け
られ、これら案内ピン19a,19bは第１及び第２の支持板1
0,11に形成された略Ｌ字状の案内孔20a,20bにそれぞれ
案内自在に挿入される。また、第２の側板16には係合ピ
ン21が上記案内ピン19bと略平行に設けられ、この係合
ピン21は第２の支持板11に形成された略Ｌ字状の案内孔
22に案内自在に挿入される。従って、カセットホルダ14
は第１及び第２の支持板10,11に挟装された状態で、カ
セット挿着位置から略水平状（矢印Ａ方向）に搬送さ
れ、上記テープ駆動部（図示せず）上で下降されてカセ
ット装填位置に案内され、このカセット装填（ローディ
ング）位置から逆方向（矢印Ｂ方向）に搬送されてカセ
ット取出し可能なカセット離脱位置に移動される。Also, the first and second side plates 15, 16 of the cassette holder 14
Guide pins 19a, 19b are provided on the outer sides of the first and second support plates 1a, 19b substantially coaxially.
The guide holes 20a and 20b, which are substantially L-shaped and are formed in the holes 0 and 11, are inserted in a guideable manner. Further, an engaging pin 21 is provided on the second side plate 16 substantially in parallel with the guide pin 19b, and the engaging pin 21 is a substantially L-shaped guide hole formed in the second support plate 11.
It is inserted in 22 freely. Therefore, the cassette holder 14
Is sandwiched between the first and second supporting plates 10 and 11, and is conveyed from the cassette insertion position in a substantially horizontal direction (direction of arrow A), and is lowered on the tape drive unit (not shown). Is guided to the cassette loading position, is conveyed in the opposite direction (direction of arrow B) from the cassette loading position, and is moved to the cassette detaching position where the cassette can be taken out.
さらに、第２の支持板11の外側には軸23が植設され、
この軸23にはフロントローディング機構を形成する第１
のローディングカム24が回転自在に支持される。この第
１のローディングカム24には腕部24aが形成され、この
腕部24aには、係合穴24bが形成される。そして、この係
合穴24bには上記カセットホルダ14の第２の側板16の案
内ピン19bが挿入される。また、第１のローディングカ
ム24は、その周囲部に歯車部24cが形成され、この歯車
部24cには伝達歯車25が歯合される。この伝達歯車25は
上記第１及び第２の支持板10,11間に回転自在に架設さ
れた軸26の一端に嵌着され、この軸26の他端には伝達歯
車27が嵌着される。従って、第１のローディングカム24
は、その回転にともなって伝達歯車25及び軸26を介して
伝達歯車27を回転駆動する。Further, a shaft 23 is planted outside the second support plate 11,
The shaft 23 has a first loading mechanism that forms a front loading mechanism.
The loading cam 24 is rotatably supported. An arm portion 24a is formed in the first loading cam 24, and an engagement hole 24b is formed in the arm portion 24a. Then, the guide pin 19b of the second side plate 16 of the cassette holder 14 is inserted into the engagement hole 24b. Further, the first loading cam 24 has a gear portion 24c formed around the periphery thereof, and a transmission gear 25 is meshed with the gear portion 24c. The transmission gear 25 is fitted to one end of a shaft 26 rotatably installed between the first and second support plates 10 and 11, and the transmission gear 27 is fitted to the other end of the shaft 26. . Therefore, the first loading cam 24
Rotates the transmission gear 27 via the transmission gear 25 and the shaft 26 in accordance with the rotation thereof.
一方、第１の支持板10には軸28が植設され、この軸28
には第２のローディングカム29が回転自在に支持され
る。この第２のローディングカム29には歯車部29aが形
成され、この歯車部29aには上記伝達歯車27が歯合され
る。また、第２のローディングカム29には腕部29bが形
成され、この腕部29bには係合穴29cが形成される。そし
て、この係合穴29cには上記カセットホルダ14の第１の
側板15の案内ピン19aが係合される。従って、これら第
１及び第２のローディングカム24,29は、伝達歯車25、
軸26及び伝達歯車27を介して同期して回転駆動され、そ
の回転に連動して、カセットホルダ14を案内ピン19a,19
bを介して搬送駆動せしめる。On the other hand, a shaft 28 is planted in the first support plate 10, and the shaft 28
A second loading cam 29 is rotatably supported by the. A gear portion 29a is formed on the second loading cam 29, and the transmission gear 27 is meshed with the gear portion 29a. An arm portion 29b is formed on the second loading cam 29, and an engaging hole 29c is formed in this arm portion 29b. The guide pin 19a of the first side plate 15 of the cassette holder 14 is engaged with the engagement hole 29c. Therefore, the first and second loading cams 24, 29 are connected to the transmission gear 25,
The cassette holder 14 is driven to rotate synchronously via the shaft 26 and the transmission gear 27, and the cassette holder 14 is guided by the guide pins 19a, 19 in conjunction with the rotation.
Transport the drive via b.
また、上記第２の支持板11の軸23には第３のローディ
ングカム30が第１のローディングカム24に積重されて配
設され、これら第１及び第３のローディングカム24,30
相互間がスプリング31を介して弾性係合される。この第
３のローディングカム30の周囲部には歯車部30aが第１
のローディングカム24の歯車部24cに対応して形成さ
れ、この歯車部30aにはウォーム32が歯合される。この
ウォーム32は第２図に示すように、その一端部にベルト
伝達機構を形成するプーリ33が軸34を介して同軸的に嵌
着され、この軸の中間部にはリテーナアッセンブリと称
するスラスト軸受け35及びラジアル軸受36が軸支されて
一体的に組立てたウォームユニット37が形成される。そ
して、このウォームユニット37は上記第２の支持板11に
取着された取付け部材38に取着される。この取付け部材
38には弾性を有した第１及び第２の弾性支持部39,40が
上記軸34の他端部及びラジアル軸受36に対応して形成さ
れており、これら第１及び第２の弾性支持部39,40に対
してウォームユニット37のウォーム32の軸34の他端部及
びラジアル軸受が、その弾性力に抗して取着される。こ
こで、スラスト軸受35は、その摩擦係数がウォームユニ
ット37を保持する第１及び第２の弾性支持部39,40の摩
擦係数に比して小さな値に設定され、ウォーム32に大き
なトルクが付与された場合においても、ウォーム32と第
１及び第２の弾性部材39,40あるいは、ウォームホイー
ルを形成する第３のローディングカム30の歯車部30aと
のかじりの発生が防止される。なお、上記プーリ33に
は、例えば図示しないキャプスタンモータ等の回転力が
伝達ベルトを介して選択的に伝達され、その回転力が第
３のローディングカム30を介して第１及び第２のローデ
ィングカム24,29に伝達される。Further, a third loading cam 30 is disposed on the shaft 23 of the second support plate 11 so as to be stacked on the first loading cam 24. The first and third loading cams 24, 30
The springs 31 are elastically engaged with each other. A gear portion 30a is firstly provided around the third loading cam 30.
It is formed corresponding to the gear portion 24c of the loading cam 24, and the worm 32 is meshed with the gear portion 30a. As shown in FIG. 2, the worm 32 has a pulley 33 forming a belt transmission mechanism coaxially fitted to one end of the worm 32 via a shaft 34, and a thrust bearing called a retainer assembly at an intermediate part of the shaft. The worm unit 37 integrally formed by axially supporting the 35 and the radial bearing 36 is formed. The worm unit 37 is attached to the attachment member 38 attached to the second support plate 11. This mounting member
First and second elastic supporting portions 39, 40 having elasticity are formed at 38 corresponding to the other end of the shaft 34 and the radial bearing 36. These first and second elastic supporting portions are formed. The other end of the shaft 34 of the worm 32 of the worm unit 37 and the radial bearing are attached to 39 and 40 against the elastic force thereof. Here, the thrust bearing 35 has its friction coefficient set to a value smaller than the friction coefficients of the first and second elastic supporting portions 39, 40 holding the worm unit 37, and a large torque is applied to the worm 32. Even in such a case, galling of the worm 32 and the first and second elastic members 39, 40 or the gear portion 30a of the third loading cam 30 forming the worm wheel is prevented. The pulley 33 is selectively transmitted with a rotational force of, for example, a capstan motor (not shown) via a transmission belt, and the rotational force is transmitted through a third loading cam 30 to the first and second loading cams. It is transmitted to the cams 24 and 29.
上記取付け部材38にはカセット位置検出用の切換スイ
ッチ41及びスイッチ切換部材42が互いに対応されて配設
される。スイッチ切換部材42は、スプリング43を介して
図中反時計方向に付勢力が付与されるように配設され、
その一端部が上記切換スイッチ41の被駆動部41aに対向
される。このスイッチ切換部材42の他端部には上記第１
のローディングカム24に形成された駆動部44が対向され
ており、上記カセットホルダ14の司るカセット挿着位置
で該第１のローディングカム24の駆動部44を介して駆動
されて上記切換スイッチ41を切換制御する。さらに、切
換スイッチ41は、その被駆動部41aが上記第２の支持板1
1の案内孔20bの基部に対応して配置され、カセットホル
ダ14が上記テープ駆動部（図示せず）に到達した状態で
第２の側板16の案内ピン19bを介して切換制御される。
従って、カセットホルダ14にテープカセット（図示しな
い）が挿着されると、カセットホルダ14がカセット挿入
方向に移動し、第１のローディングカム24が時計方向に
回動するため切換スイッチ41は、第１のローディングカ
ム24の駆動部44及びスイッチ切換部材42を介して切換ら
れてオン制御される。これにともなって、駆動源の図示
しない駆動モータからの駆動力をウォーム32、第３のロ
ーディングカム30を介して上述したように第１及び第２
のローディングカム24,29に伝達せしめ、カセットホル
ダ14をローディングする。そして、カセットホルダ14が
上記テープ駆動部（図示せず）に到達すると、切換スイ
ッチ41はカセットホルダ14の案内ピン19bにより切換ら
れてオフされ、ここに、上記駆動モータ（図示せず）の
駆動力の伝達を停止させる。次に、イジェクト操作がな
されて上記駆動モータ（図示せず）が反転されると、こ
れにともなってウォーム32、第３のローディングカム3
0、第１及び第２のローディングカム24,29が反転され、
カセットホルダ14がアンローディングされて使用者がテ
ープカセットを取出すカセット離脱位置に搬送される。
この際、上記スイッチ切換部材42が第１のローディング
カム24の駆動部44にスプリング43のばね力に孔して図中
時計方向に回動付勢されて、上記切換スイッチ41が切換
制御され、ここに、上記駆動モータ（図示せず）からの
駆動力の伝達が停止される。The mounting member 38 is provided with a changeover switch 41 and a switch changeover member 42 for detecting the cassette position in association with each other. The switch switching member 42 is arranged so that a biasing force is applied in the counterclockwise direction in the figure via the spring 43,
One end thereof faces the driven portion 41a of the changeover switch 41. The other end of the switch changeover member 42 has the first
The driving portion 44 formed on the loading cam 24 faces the driving portion 44 of the first loading cam 24 at the cassette insertion position controlled by the cassette holder 14 to drive the changeover switch 41. Switch control. Further, in the changeover switch 41, the driven portion 41a thereof has the second supporting plate 1
The cassette holder 14 is arranged corresponding to the base portion of the first guide hole 20b, and is switched and controlled via the guide pin 19b of the second side plate 16 in a state where the cassette holder 14 reaches the tape driving portion (not shown).
Therefore, when the tape cassette (not shown) is inserted into the cassette holder 14, the cassette holder 14 is moved in the cassette insertion direction, the change-over switch 41 for the first loading cam 24 is rotated clockwise, the One loading cam 24 is switched on and controlled via the drive unit 44 and the switch switching member 42. Along with this, the driving force from the driving motor (not shown) of the driving source is passed through the worm 32 and the third loading cam 30 as described above to the first and second
The cassette holder 14 is loaded by transmitting it to the loading cams 24 and 29. When the cassette holder 14 reaches the tape drive unit (not shown), the changeover switch 41 is switched off by the guide pin 19b of the cassette holder 14 , and the drive motor (not shown) is driven there. Stop the transmission of force. Next, when an eject operation is performed and the drive motor (not shown) is reversed, the worm 32 and the third loading cam 3 are accompanied by this.
0, the first and second loading cams 24, 29 are reversed,
The cassette holder 14 is unloaded and is transported to the cassette detaching position where the user takes out the tape cassette.
At this time, the switch switching member 42 is urged to rotate in the clockwise direction in the figure by the spring force of the spring 43 in the drive portion 44 of the first loading cam 24, and the changeover switch 41 is controlled to switch. At this point, the transmission of the driving force from the drive motor (not shown) is stopped.
このように、上記カセット装填装置はローディング駆
動用のウォーム32の軸34の一端部に同軸的に駆動力の伝
達されるプーリ33を嵌着して、この軸34の中間部をスラ
スト軸受35及びラジアル軸受36で軸支したウォームユニ
ット37を形成し、このウォームユニット37のスラスト軸
受35を、その軸34の他端部及びラジアル軸受36を着脱自
在に保持する第１及び第２の弾性支持部39,40の摩擦係
数よりも小さな値の摩擦係数を有するものを用いて構成
した。これによれば、ウォームユニット37は取付け部材
38に設けられた第１及び第２の弾性支持部39,40に各弾
性力に抗して挿着した後、そのウォーム32に第３のロー
ディングカム30の歯車部30aを歯合させるだけで、組立
てが完了することにより、その組立て作業の簡便化が図
れる。また、これによれば、例えば一旦、カセットホル
ダ14がローディングされた後、使用者によりカセットホ
ルダ14の位相が強制的に停止された場合、そのウォーム
32に非常に大きなトルクが付与されるが、そのトルクに
よる該ウォーム32と第３のローディングカム30の歯車部
30aあるいは、第１及び第２の弾性支持部39,40とのかじ
りがスラスト軸受35の作用により防止されることによ
り、駆動モータ（図示せず）の駆動力をローディング動
作時の起動トルクに対応したものを用いて、確実な動作
制御が実現できるため、省電力化が図れる。As described above, the cassette loading device has the pulley 33, to which the driving force is transmitted, coaxially fitted to one end of the shaft 34 of the worm 32 for loading drive, and the intermediate portion of the shaft 34 is connected to the thrust bearing 35 and A worm unit 37 is supported by a radial bearing 36, and a thrust bearing 35 of the worm unit 37 is detachably held by the other end of the shaft 34 and the radial bearing 36. It was constructed by using one having a friction coefficient smaller than the friction coefficient of 39,40. According to this, the worm unit 37 is a mounting member.
After inserting the first and second elastic supporting portions 39, 40 provided on the 38 against each elastic force, the gear portion 30a of the third loading cam 30 is simply meshed with the worm 32. By completing the assembling, the assembling work can be simplified. Further, according to this, for example, when the cassette holder 14 is once loaded and then the phase of the cassette holder 14 is forcibly stopped by the user, the warm
A very large torque is applied to 32, and the worm 32 and the gear portion of the third loading cam 30 due to the torque.
The thrust bearing 35 prevents the galling of the 30a or the first and second elastic supporting portions 39, 40, and thus the driving force of the driving motor (not shown) corresponds to the starting torque during the loading operation. Since the reliable operation control can be realized by using the above, power saving can be achieved.
なお、上記実施例では、ウォームユニット保持用の第
１及び第２の弾性支持部39,40を形成した取付け部材38
を取着する取付け体としてカセットホルダ14を案内自在
に保持する第１及び第２の支持板10,11のうちの第２の
支持板11に配設するように構成した場合で説明したが、
これに限ることなく、例えば、第１及び第２の支持板1
0,11を支持してなる図示しないシャーシに直接的に取着
するように構成することも可能である。In the above embodiment, the mounting member 38 having the first and second elastic support portions 39, 40 for holding the worm unit is formed.
The case has been described in which the cassette holder 14 is mounted on the second supporting plate 11 of the first and second supporting plates 10 and 11 as a mounting body to which the cassette holder 14 is guided.
For example, the first and second support plates 1 are not limited to this.
It is also possible to directly attach to a chassis (not shown) that supports 0 and 11.
また、上記実施例では、第１及び第２の弾性支持部3
9,40を一体的に形成した場合で説明したが、これに限る
ことなく、別体に形成することも可能である。In the above embodiment, the first and second elastic support parts 3
Although the case where the 9,40 are integrally formed has been described, the present invention is not limited to this and can be formed separately.
よって、この発明は上記実施例に限ることなく、その
他、この発明の要旨を逸脱しない範囲で種々の変形を実
施し得ることは勿論のことである。Therefore, it is needless to say that the present invention is not limited to the above-described embodiment, and that various modifications can be made without departing from the scope of the present invention.
［発明の効果］ 以上詳述したように、この発明によれば、小さな駆動
力で、確実な動作制御を実現し得、かつ、組立て取付け
作業の簡略化を図り得るようにしたカセット装填装置を
提供することできる。[Effects of the Invention] As described in detail above, according to the present invention, a cassette loading device capable of realizing reliable operation control with a small driving force and simplifying the assembly and mounting work is provided. Can be provided.
第１図はこの発明の一実施例に係るカセット装填装置を
示す分解斜視図、第２図は第１図のウォームユニットを
取出して示す断面図である。 10,11…第１及び第２の支持板、12a,12b…上連結板、13
…下連結板、14…カセットホルダ、15,16…第１及び第
２の側板、17,18…上及び下板、18a…切り欠き部、19a,
19b…案内ピン、20a,20b…案内孔、21…係合ピン、22…
案内孔、23…軸、24…第１のローディングカム、24a…
腕部、24b…係合穴、24c…歯車部、25…伝達歯車、26…
軸、27…伝達歯車、28…軸、29…第２のローディングカ
ム、29a…腕部、29c…係合穴、30…第３のローディング
カム、30a…歯車部、31…スプリング、32…ウォーム、3
3…プーリ、34…軸、35…スラスト軸受、36…ラジアル
軸受、37…ウォームユニット、38…取付け部材、39,40
…第１及び第２の弾性支持部、41…切換スイッチ、42…
スイッチ切換部材、43…スプリング、44…駆動部。1 is an exploded perspective view showing a cassette loading device according to an embodiment of the present invention, and FIG. 2 is a sectional view showing a worm unit of FIG. 1 taken out. 10, 11 ... First and second support plates, 12a, 12b ... Upper connecting plate, 13
... lower connecting plate, 14 ... cassette holder, 15, 16 ... first and second side plates, 17, 18 ... upper and lower plates, 18a ... notch portion, 19a,
19b ... Guide pin, 20a, 20b ... Guide hole, 21 ... Engagement pin, 22 ...
Guide hole, 23 ... Shaft, 24 ... First loading cam, 24a ...
Arm part, 24b ... Engagement hole, 24c ... Gear part, 25 ... Transmission gear, 26 ...
Shaft, 27 ... Transmission gear, 28 ... Shaft, 29 ... Second loading cam, 29a ... Arm portion, 29c ... Engagement hole, 30 ... Third loading cam, 30a ... Gear portion, 31 ... Spring, 32 ... Worm , 3
3 ... pulley, 34 ... shaft, 35 ... thrust bearing, 36 ... radial bearing, 37 ... worm unit, 38 ... mounting member, 39, 40
... First and second elastic support portions, 41 ... Changeover switch, 42 ...
Switch switching member, 43 ... spring, 44 ... driving unit.
Claims (1)
構のプーリにウォームの一端部が同軸的に嵌着され、そ
の中間部がスラスト軸受け及びラジアル軸受で軸支され
たウォームユニットと、 このウォームユニットが配設される取付け体に設けられ
るもので、前記ウォームユニットの他端部及びラジアル
軸受が着脱自在に保持される第１及び第２の弾性支持部
と、 前記ウォームユニットのウォームに歯合され、テープカ
セットが略水平状に収容されたカセットホルダを案内し
て前記テープカセットをテープ駆動部に装填するウォー
ムホイールとを具備し、前記スラスト軸受けの摩擦係数
を前記ウォームユニットを保持する第１及び第２の弾性
支持部の摩擦係数より小さく設定したことを特徴とする
カセット装填装置。1. A worm unit in which one end of a worm is coaxially fitted to a pulley of a belt transmission mechanism to which a driving force of a drive source is transmitted, and an intermediate portion of which is axially supported by a thrust bearing and a radial bearing, The worm unit is provided on a mounting body, and the other end of the worm unit and the first and second elastic support portions, on which the radial bearing is detachably held, and the worm of the worm unit. And a worm wheel that guides the cassette holder in which the tape cassette is accommodated in a substantially horizontal state and that loads the tape cassette in the tape drive unit, and holds the friction coefficient of the thrust bearing in the worm unit. A cassette loading device, wherein the friction coefficient of the first and second elastic support portions is set to be smaller than that of the first and second elastic support portions.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63333590A JP2693541B2 (en) | 1988-12-28 | 1988-12-28 | Cassette loading device |
| EP89123986A EP0376270B1 (en) | 1988-12-28 | 1989-12-27 | Cassette loading apparatus with worm cling protection |
| US07/457,976 US5055953A (en) | 1988-12-28 | 1989-12-27 | Cassette loading apparatus having a guide member with worm unit for reduction of drive torque |
| DE68917576T DE68917576T2 (en) | 1988-12-28 | 1989-12-27 | Cassette charger with snail gear grip. |
| KR1019890019780A KR930007181B1 (en) | 1988-12-28 | 1989-12-28 | Cassette loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63333590A JP2693541B2 (en) | 1988-12-28 | 1988-12-28 | Cassette loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02177161A JPH02177161A (en) | 1990-07-10 |
| JP2693541B2 true JP2693541B2 (en) | 1997-12-24 |
Family
ID=18267743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63333590A Expired - Lifetime JP2693541B2 (en) | 1988-12-28 | 1988-12-28 | Cassette loading device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5055953A (en) |
| EP (1) | EP0376270B1 (en) |
| JP (1) | JP2693541B2 (en) |
| KR (1) | KR930007181B1 (en) |
| DE (1) | DE68917576T2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940007628B1 (en) * | 1992-04-21 | 1994-08-22 | 대우전자 주식회사 | Vcr loading device |
| DE4229754A1 (en) * | 1992-09-05 | 1994-03-10 | Philips Patentverwaltung | Magnetic tape cassette device with a drive for playing magnetic tape cassettes (guiding the loading mechanism) |
| US7298585B1 (en) * | 2003-12-31 | 2007-11-20 | Storage Technology Corporation | Storage medium load and unload apparatus with an impact diverter |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1547818A (en) * | 1975-05-20 | 1979-06-27 | Matsushita Electric Ind Co Ltd | Magnetic recording-reproducing apparatus |
| JPS5731390Y2 (en) * | 1975-06-23 | 1982-07-09 | ||
| JPS5827580B2 (en) * | 1976-05-04 | 1983-06-10 | 松下電器産業株式会社 | magnetic recording and reproducing device |
| US4133497A (en) * | 1977-12-05 | 1979-01-09 | Teletype Corporation | Tape cassette drive including means for reducing tape transport start-up shock |
| AT356403B (en) * | 1978-05-05 | 1980-04-25 | Philips Nv | RECORDING AND / OR PLAYING DEVICE |
| JPS5589941A (en) * | 1978-12-28 | 1980-07-08 | Victor Co Of Japan Ltd | Mounting and demounting unit for tape container |
| US4370682A (en) * | 1979-01-12 | 1983-01-25 | Victor Company Of Japan, Ltd. | Tape loading apparatus in a recording and/or reproducing apparatus |
| JPS55113165A (en) * | 1979-02-26 | 1980-09-01 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
| US4423445A (en) * | 1980-05-02 | 1983-12-27 | Clarion Co., Ltd. | Clutch system in a tape player |
| US4511940A (en) * | 1981-10-05 | 1985-04-16 | Clarion Co., Ltd. | Tape player having motor-driven tape-pack loading mechanism |
| JPS58121170A (en) * | 1982-01-13 | 1983-07-19 | Hitachi Ltd | Tape guide mechanism of magnetic recording and reproducing device |
| JPS58164050A (en) * | 1982-03-19 | 1983-09-28 | Sanyo Electric Co Ltd | Cassette containing device |
| US4577246A (en) * | 1982-04-30 | 1986-03-18 | Pioneer Electronic Corporation | Cassette recording/reproducing apparatus with an automatic loading feed roller |
| US4628383A (en) * | 1983-01-28 | 1986-12-09 | Victor Company Of Japan, Ltd. | Tape cassette loading device in a magnetic recording and/or reproducing apparatus |
| US4642714A (en) * | 1983-02-08 | 1987-02-10 | Victor Company Of Japan, Ltd. | Tape cassette loading and ejecting device in a magnetic recording and/or reproducing apparatus |
| JPS60647A (en) * | 1983-06-15 | 1985-01-05 | Hitachi Ltd | Cassette loading device |
| JPS6174169A (en) * | 1984-09-19 | 1986-04-16 | Canon Inc | Loading device for recording carrier storage vessel |
| JPS6185663A (en) * | 1984-10-03 | 1986-05-01 | Hitachi Ltd | Cassette loading device |
| JPH0356901Y2 (en) * | 1985-01-29 | 1991-12-24 | ||
| JPS61210552A (en) * | 1985-03-14 | 1986-09-18 | Matsushita Electric Ind Co Ltd | Cassette loading device |
| EP0202716B1 (en) * | 1985-05-23 | 1990-07-25 | Philips Patentverwaltung GmbH | Magnetic-tape cassette apparatus with two push buttons |
| JPS61280071A (en) * | 1985-06-04 | 1986-12-10 | Mitsubishi Electric Corp | Loading and unloading of cassette and motion mode change-over device |
| KR880003916Y1 (en) * | 1985-07-24 | 1988-10-25 | 주식회사금성사 | Front loading device of a video cassette tape recorder |
| JPS6286569A (en) * | 1985-10-11 | 1987-04-21 | Hitachi Ltd | Magnetic recording and reproducing device |
| US4858042A (en) * | 1986-09-30 | 1989-08-15 | Clarion Co., Ltd. | Cassette insertion detecting mechanism |
| JP2615035B2 (en) * | 1987-02-25 | 1997-05-28 | 株式会社日立製作所 | Magnetic tape mounting apparatus and mounting method |
| JPS63214954A (en) * | 1987-03-03 | 1988-09-07 | Hitachi Ltd | Magnetic recording and reproducing device |
| KR900007830Y1 (en) * | 1987-09-15 | 1990-08-24 | 주식회사 금성사 | Cassette loading apparatus |
-
1988
- 1988-12-28 JP JP63333590A patent/JP2693541B2/en not_active Expired - Lifetime
-
1989
- 1989-12-27 DE DE68917576T patent/DE68917576T2/en not_active Expired - Fee Related
- 1989-12-27 EP EP89123986A patent/EP0376270B1/en not_active Expired - Lifetime
- 1989-12-27 US US07/457,976 patent/US5055953A/en not_active Expired - Fee Related
- 1989-12-28 KR KR1019890019780A patent/KR930007181B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0376270A3 (en) | 1991-01-30 |
| KR930007181B1 (en) | 1993-07-31 |
| KR900010722A (en) | 1990-07-09 |
| EP0376270B1 (en) | 1994-08-17 |
| DE68917576D1 (en) | 1994-09-22 |
| JPH02177161A (en) | 1990-07-10 |
| DE68917576T2 (en) | 1995-01-05 |
| EP0376270A2 (en) | 1990-07-04 |
| US5055953A (en) | 1991-10-08 |
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